Load Specifications
Load data in caliber 6.5 x 64 Brenneke with .264 | 128gr | TWENTY-NINE ERTP bullet and 93 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 and Accurate High Country.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 55,129 psi | 88% | 2756 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 56,086 psi | 90% | 2822 fps | 98.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,911 psi | 86% | 2864 fps | 99.5% |
| Accurate 4064 | <<locked>> | 84% | 55,376 psi | 89% | 2808 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 55,970 psi | 90% | 2913 fps | 100% |
| Accurate High Country | <<locked>> | 98% | 54,984 psi | 88% | 3002 fps | 97.2% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 56,144 psi | 90% | 3005 fps | 96.1% |
| ADI AR 2208 | <<locked>> | 86% | 55,419 psi | 89% | 2841 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 53,490 psi | 86% | 2900 fps | 97.7% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,737 psi | 88% | 2949 fps | 96.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,781 psi | 88% | 2963 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 53,650 psi | 86% | 2900 fps | 97.8% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 53,650 psi | 86% | 2900 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 56,246 psi | 90% | 2864 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 52,968 psi | 85% | 2831 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 53,388 psi | 86% | 2920 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 54,404 psi | 87% | 2940 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 56,159 psi | 90% | 2943 fps | 98.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,606 psi | 86% | 2946 fps | 98% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,720 psi | 81% | 2884 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,976 psi | 71% | 2802 fps | 98.9% |
| Alliant Reloder-26 | <<locked>> | 98% | 54,360 psi | 87% | 3022 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 49,023 psi | 79% | 2867 fps | 96.9% |
| Bofors RP3 | <<locked>> | 84% | 53,650 psi | 86% | 2828 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,606 psi | 86% | 2946 fps | 98% |
| Bofors RP7 | <<locked>> | 88% | 52,895 psi | 85% | 2808 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 84% | 54,085 psi | 87% | 2844 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 54,549 psi | 87% | 2910 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 88% | 54,389 psi | 87% | 2871 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 98% | 55,042 psi | 88% | 2897 fps | 96.1% |
| Hodgdon H4831 SC | <<locked>> | 98% | 53,635 psi | 86% | 2874 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 53,679 psi | 86% | 2844 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 55,230 psi | 89% | 2881 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 54,795 psi | 88% | 2946 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,506 psi | 59% | 1781 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 55,912 psi | 90% | 2844 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,013 psi | 88% | 2825 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 53,882 psi | 86% | 2802 fps | 99% |
| IMR 4350 | <<locked>> | 92% | 54,027 psi | 87% | 2848 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 88% | 54,781 psi | 88% | 2841 fps | 99% |
| IMR 4831 | <<locked>> | 92% | 52,881 psi | 85% | 2851 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 54,317 psi | 87% | 2858 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 53,069 psi | 85% | 2828 fps | 95.9% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,982 psi | 83% | 2917 fps | 96.2% |
| Lovex S060 | <<locked>> | 82% | 56,318 psi | 90% | 2805 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 55,216 psi | 89% | 2818 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,621 psi | 88% | 2835 fps | 99.7% |
| Lovex S070 | <<locked>> | 92% | 55,970 psi | 90% | 2877 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,773 psi | 72% | 2713 fps | 98.3% |
| Norma 203B | <<locked>> | 84% | 55,825 psi | 90% | 2871 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,433 psi | 87% | 2894 fps | 97.8% |
| Norma MRP | <<locked>> | 98% | 53,098 psi | 85% | 2972 fps | 99% |
| Norma URP | <<locked>> | 92% | 54,752 psi | 88% | 2897 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 53,026 psi | 85% | 2844 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 52,533 psi | 84% | 2936 fps | 96.7% |
| Ramshot Hunter | <<locked>> | 92% | 53,403 psi | 86% | 2897 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,876 psi | 75% | 2808 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,057 psi | 59% | 1821 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 53,882 psi | 86% | 2828 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 53,954 psi | 87% | 2933 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 55,999 psi | 90% | 2940 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 54,288 psi | 87% | 2963 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 43,120 psi | 69% | 2822 fps | 97.1% |
| Rottweil R 902 | <<locked>> | 82% | 53,577 psi | 86% | 2779 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 53,490 psi | 86% | 2822 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 55,332 psi | 89% | 2874 fps | 97% |
| Rottweil R 905 | <<locked>> | 98% | 55,448 psi | 89% | 2930 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 88% | 52,895 psi | 85% | 2808 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,621 psi | 88% | 2835 fps | 99.7% |
| Shooters World Precision | <<locked>> | 84% | 55,216 psi | 89% | 2818 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,970 psi | 90% | 2877 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,027 psi | 88% | 2881 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 56,072 psi | 90% | 2854 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,868 psi | 88% | 2717 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,447 psi | 87% | 2789 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 54,955 psi | 88% | 2923 fps | 98.2% |
| Somchem S355 | <<locked>> | 86% | 53,838 psi | 86% | 2825 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 53,925 psi | 86% | 2900 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 56,202 psi | 90% | 2904 fps | 98.9% |
| Vihtavuori N135 | <<locked>> | 82% | 53,911 psi | 86% | 2740 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 54,143 psi | 87% | 2753 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,911 psi | 88% | 2795 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 53,403 psi | 86% | 2841 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,909 psi | 83% | 2825 fps | 98% |
| Vihtavuori N540 | <<locked>> | 84% | 56,028 psi | 90% | 2799 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,999 psi | 90% | 2900 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 53,055 psi | 85% | 2904 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 53,432 psi | 86% | 2956 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 52,765 psi | 85% | 2808 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,882 psi | 88% | 2917 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,585 psi | 73% | 2933 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 56,405 psi | 90% | 2864 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 56,420 psi | 90% | 2900 fps | 98.2% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 51,517 psi | 83% | 2707 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,255 psi | 79% | 2710 fps | 97.6% |
| Accurate 3100 | <<locked>> | 88% | 35,824 psi | 57% | 2526 fps | 95.9% |
| Accurate 4064 | <<locked>> | 80% | 48,805 psi | 78% | 2713 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,086 psi | 59% | 2572 fps | 97.9% |
| Accurate High Country | 52.3 gr | 94% | 47,892 psi | 77% | 2881 fps | 95.6% |
| Accurate MAGPRO | <<locked>> | 98% | 52,040 psi | 83% | 2936 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 46,108 psi | 74% | 2684 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 90% | 43,918 psi | 70% | 2723 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 98% | 51,097 psi | 82% | 2887 fps | 95.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,836 psi | 82% | 2897 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 44,150 psi | 71% | 2726 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 44,150 psi | 71% | 2726 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,746 psi | 75% | 2713 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,617 psi | 80% | 2776 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,230 psi | 58% | 2582 fps | 98.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,002 psi | 66% | 2707 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 43,627 psi | 70% | 2720 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 43,961 psi | 70% | 2769 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,585 psi | 43% | 2336 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 92% | 34,214 psi | 55% | 2569 fps | 95.8% |
| Alliant Reloder-26 | 48.1 gr | 84% | 32,532 psi | 52% | 2566 fps | 96% |
| Bofors RP15 | <<locked>> | 96% | 43,062 psi | 69% | 2749 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 46,905 psi | 75% | 2723 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 43,961 psi | 70% | 2769 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 41,394 psi | 66% | 2592 fps | 95.9% |
| Hodgdon H380 | <<locked>> | 80% | 47,355 psi | 76% | 2733 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 80% | 39,276 psi | 63% | 2625 fps | 96% |
| Hodgdon H4350 | <<locked>> | 80% | 42,076 psi | 67% | 2641 fps | 95.3% |
| Hodgdon H4831 | <<locked>> | 96% | 51,372 psi | 82% | 2838 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 50,111 psi | 80% | 2815 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,939 psi | 54% | 2484 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,401 psi | 82% | 2822 fps | 100% |
| Hodgdon Superformance | <<locked>> | 80% | 38,159 psi | 61% | 2628 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,282 psi | 44% | 1591 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,402 psi | 84% | 2792 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,457 psi | 78% | 2720 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,807 psi | 81% | 2749 fps | 98.5% |
| IMR 4350 | <<locked>> | 82% | 39,465 psi | 63% | 2575 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,583 psi | 68% | 2621 fps | 96.8% |
| IMR 4831 | <<locked>> | 80% | 35,882 psi | 58% | 2530 fps | 97.7% |
| IMR 4895 | <<locked>> | 80% | 50,879 psi | 82% | 2805 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 49,734 psi | 80% | 2772 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 98% | 48,820 psi | 78% | 2858 fps | 95.4% |
| Lovex S060 | <<locked>> | 80% | 53,127 psi | 85% | 2759 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,733 psi | 78% | 2720 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,205 psi | 64% | 2572 fps | 97.5% |
| Lovex S070 | <<locked>> | 80% | 38,537 psi | 62% | 2552 fps | 95.9% |
| Lovex S071 | <<locked>> | 92% | 34,679 psi | 56% | 2500 fps | 95.4% |
| Norma 203B | <<locked>> | 80% | 48,965 psi | 79% | 2762 fps | 100% |
| Norma 204 | <<locked>> | 86% | 44,454 psi | 71% | 2713 fps | 95.4% |
| Norma MRP | <<locked>> | 88% | 37,710 psi | 60% | 2664 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 37,057 psi | 59% | 2569 fps | 97.8% |
| Ramshot Big Game | <<locked>> | 80% | 49,313 psi | 79% | 2785 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 48,936 psi | 78% | 2871 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 35,810 psi | 57% | 2552 fps | 95.7% |
| Ramshot Magnum | <<locked>> | 96% | 40,408 psi | 65% | 2677 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,586 psi | 44% | 1624 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,384 psi | 76% | 2717 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,584 psi | 70% | 2762 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,956 psi | 59% | 2592 fps | 97.6% |
| ReloadSwiss RS 70 | 45.4 gr | 80% | 35,839 psi | 57% | 2592 fps | 96.8% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 40,045 psi | 64% | 2749 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 50,473 psi | 81% | 2730 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,222 psi | 71% | 2671 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 48,718 psi | 78% | 2762 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 90% | 42,583 psi | 68% | 2700 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 41,394 psi | 66% | 2592 fps | 95.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,205 psi | 64% | 2572 fps | 97.5% |
| Shooters World Precision | <<locked>> | 80% | 48,733 psi | 78% | 2720 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,537 psi | 62% | 2552 fps | 95.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,165 psi | 72% | 2720 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,562 psi | 84% | 2802 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,382 psi | 73% | 2575 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,291 psi | 63% | 2516 fps | 96% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 42,192 psi | 68% | 2694 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 44,440 psi | 71% | 2667 fps | 99.9% |
| Somchem S365 | <<locked>> | 80% | 33,446 psi | 54% | 2526 fps | 99.5% |
| Somchem S385 | <<locked>> | 88% | 40,524 psi | 65% | 2628 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 50,705 psi | 81% | 2694 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,981 psi | 82% | 2707 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,511 psi | 68% | 2598 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,290 psi | 61% | 2566 fps | 98.1% |
| Vihtavuori N165 | <<locked>> | 94% | 42,598 psi | 68% | 2657 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 49,284 psi | 79% | 2703 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,942 psi | 61% | 2572 fps | 97.9% |
| Vihtavuori N555 | <<locked>> | 80% | 29,225 psi | 47% | 2411 fps | 95.7% |
| Vihtavuori N560 | <<locked>> | 96% | 49,951 psi | 80% | 2894 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,594 psi | 60% | 2539 fps | 99.5% |
| Winchester 760 | <<locked>> | 80% | 39,276 psi | 63% | 2625 fps | 96% |
| Winchester StaBALL HD | <<locked>> | 84% | 26,716 psi | 43% | 2425 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,852 psi | 85% | 2812 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,859 psi | 69% | 2671 fps | 95.1% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 93 powders for 6.5 x 64 Brenneke loaded with the .264 | 128gr | TWENTY-NINE ERTP. Alliant Reloder-26 delivers the highest muzzle velocity at 3,022 fps; across all powders the maximum-charge window runs from 1,781 fps to 3,022 fps. Accurate 3100 gives the best case fill at 100 %, and 93 of the 93 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 128.0 gr projectile in 0.265" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. ReloadSwiss RS 70, Alliant Reloder-26, Accurate High Country rank at the top here: for 6.5 x 64 Brenneke with the .264 | 128gr | TWENTY-NINE ERTP they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.